<label class="switch">
  <input type="checkbox" class="input">
  <span class="slider"></span>
</label>
<style>
/* From Uiverse.io by Ratinax - Source: Voxybuns - Tags: minimalist, switch, color */
/* The switch - the box around the slider */
.switch {
  /* Variables */
  --switch_width: 2em;
  --switch_height: 1em;
  --thumb_color: green;
  --track_color: #e8e8e8;
  --track_active_color: #888;
  --outline_color: #000;
  font-size: 17px;
  position: relative;
  display: inline-block;
  width: var(--switch_width);
  height: var(--switch_height);
}

/* Hide default HTML checkbox */
.switch .input {
  opacity: 0;
  width: 0;
  height: 0;
}

/* The slider */
.slider {
  box-sizing: border-box;
  border: 2px solid var(--outline_color);
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  transition: .15s;
  border-radius: var(--switch_height);
}

.slider:before {
  box-sizing: border-box;
  position: absolute;
  content: "";
  height: var(--switch_height);
  width: var(--switch_height);
  border: 2px solid var(--outline_color);
  border-radius: 100%;
  left: -2px;
  bottom: -2px;
  background-color: var(--thumb_color);
  transform: translateY(-0.2em);
  box-shadow: 0 0.2em 0 var(--outline_color);
  transition: .15s;
}

.input:checked + .slider {
  background-color: var(--track_active_color);
}

.input:focus-visible + .slider {
  box-shadow: 0 0 0 2px var(--track_active_color);
}

/* Raise thumb when hovered */
.input:hover + .slider:before {
  transform: translateY(-0.3em);
  box-shadow: 0 0.3em 0 var(--outline_color);
}

.input:checked + .slider:before {
  transform: translateX(calc(var(--switch_width) - var(--switch_height))) translateY(-0.2em);
  background-color: red;
}

/* Raise thumb when hovered & checked */
.input:hover:checked + .slider:before {
  transform: translateX(calc(var(--switch_width) - var(--switch_height))) translateY(-0.3em);
  box-shadow: 0 0.3em 0 var(--outline_color);
}
</style>
